PC's are gettting disconnect automatically in random period , but its getting connect after do release/renew the ip. Happening for all machines connected in same switch

[Mani kandan]

PC's are getting disconnect automatically in random period , but its getting connect  after do release/renew the ip. Happening for all machines connected in same switch 

[InayathUlla Sharieff]

hello mani,

What Switch, Software running on the Switch?

How often this issue occurs? What changes been made which triggered this issue?